Internal-combustion engine



F. BJRCHBA-UER INTERNAL COMBUSTION ENGINE APPLICATION FILED SEPT. I6, 1919.

Patented July 18, 1922:

untrue srnres Parana FERDINAND BIRCHBAUER, or BALTIM RE, MARY-LAND, assrenoa or ONE-HALF T JOSEPH n. FALLIN, or BALTIMORE, MARYLAND.

I INTERNAL-COMBUSTION ENGINE.

asters.

' Patented Jur 18,1922.

Application filed September 16,1919. Serial No. 324,121.

T 0 all whom it wing) concern:

Be it known that I, FERDINAND BIRCH- BAUER, a citizen of the United States, residing at Baltimore, in the State of Maryland, have invented certain new and useful Improvements in Internal-Cornbustion Engines,'of which the following is a specification.

This invention relates to improvements in internal combustion engines, and has for its object to provide an engine, of the type de scribed, of greater efficiency and power than the present internal combustion engines of similar size.

The invention consists of the novel construction and arrangement of theparts and combination of parts hereinafter more fully setforth in the following specification and pointed out in detail in the appended claim. In the accompanying drawing- Figure 1 isan elevation of my -invention, the crank-case being shown in section.

Figure 2 is a vertical section of the piston cylinder showing the pistons at their extreme stroke. Y v p Figure 3 is a detail plan View of the ring surrounding the lower end of the cylinder and to which the cranks of the upper pis-' f ton are connected.

f rReferring to the accompanying drawing forming part of this specification and in which like reference numerals designate like parts throughout the several views thereof, lrlesignates the piston cylinder which is connected to and has its lower end projecting into the crank-case 2. The said cylinder 1 is provided with two pistons 3 and 4, the

upper piston 3 being connected by the rod 5 to the cross-head'o whichlatter is connected to the rods 7 the said rods 7 project down through the plugs 8 and 9 and have their lower ends connected to the ring 10 which latter is adapted to slide up and down on the lower end of the cylinder 1 and is connected by the rods 11 to the cranks 12 on the crank-shaft 13. The said cranks 12 are set at the same degree and work in unison, both being operated by the upper piston 3 the lower piston 4 is connected by the rod 14' to the crank 15on the crank-shaft 13. The cylinder 1 is provided with an intake valve 16 which controls the opening 17 through which the gas is supplied to the cylinder 1. On the downwardstroke of the upper piston 3the intake valve 16 is unseated, which allows the gas to pass to be drawn through the opening 17 and passes 20 below the'pi'ston' 3 and into the chamber by the pistons 3 and 4: and when the said pistons 3 and 4 move towards each other the gas will be compressed in the chamber by the said pistons 3 and 4; where itwill be fired by the spark from the spark plug.21

and as saidpistons move apart the exhaust will pass through the ports 22, passage 23 and out through the exhaust opening 24. This operation is repeated at each firing of the gas.

It will thus be seen that eachtime the firing takes place the cylinder will be forced apart and each operating the crank-shaft at the same time thus creating practically twice the power 0 an engine of similar size and only one cylinder.

It is obvious that any number of cylinders desired may be employed.

Having thus described my inventionwhat I claim is: i In an internal combustion engine, the combination of the cylinder having a passage at itsupp er end, an intake opening in said passage, and ports connecting said passage with the combustion chamber of said cylinder, a valve to control said intake opening, a passage at the loweriend of said cylinder, an exhaust opening to the passage at the lower end of the cylinder, and ports leading from the combustion chamber to the passage at the lower end of the cylinder, a

crank-case into which the lower end of said cylinder pro ects, a crank-shaft mounted in said case and having two cranksset at the same degree and one crank set opposite to,

the, first mentioned two cranks, two pistons within sald cylinder, a rod connecting the lower piston with the crank shaft. a cross .head above said cylinder, a rod connecting the upper piston with the said cross-head,

a ringsurrounding the lower end of the.

said cylinder, two rods connecting the crosshead with said ring, and rods connecting the said ring with the first mentioned two cranks on the crank-shaft.

In testimonywhereot I afiix my signature.

FERDINAND BrnoHBAUEaL 

